Liquid-coating machine



E. F. MULLER.

LIQUID COATING MACHINE.

APPLICATJION man APR. 8, 1922.

Patented July 4, 1922.

I INYEIVTOKZ 1 a an en a it all FJZQ'UARD Itiidrlfii Mlj'LLEIt. OFIrEIPfiIGdQINDENAU. Ci-ELRJVIANY,

. SSTPLG'NOIR T0 33. A.

IVLIIILIER, 01 MILIJVALE IEXYEETDTSXON, PENIN'fi'STXrVtiNIA.

LIQUID-COATING MACHINE.

Application filed April 8,

T0 aZZ whom it may concern:

Be it known that I, EDUARI) FELIX Min.- Lnn, a citizen of the Republicof Germany, residing at 16 Otto Street, Leipsigliindenau, Germany, haveinvented new and useful Improvements in Liquid-Coating Machines (forwhich I have tiled an application in Germany December 20, 1920). and ofwhich the following is a specification.

My invention relates to liquidcoating inachines by which glue,paste,paint, ink, water or the like may be transferred from a reservoirto the surface of paper, pasteboard, cloth. leather or the like.

It is one object of this invention to provide an improved device of theclass just referred to whereby the liquid may be evenly spread upon thedesired material by the posi tive action of the liquid-applyingroller,the roller being caused to rotate by friction on a dry portion ofthe surface wetted by the said liuid; another object is to provide readymeans for adjusting the feed of the fluid to the roller; and a stillfurther object is to provide adevice of the class described that issimple in construction, easy to operate, and efficient in service.

Referring to the accompanying drawing. F ig. is cross-section of ahand-operated' machine built in accordance with the principles of myinvention; 2, a central longitudinal section of Fig. 3; Fig. 3, a topplan view of the said machine; and Fig. at, side-elevation thereofshowing the machine in operating position.

011 the drawing, 1 designates a frame having the handle 2 at one end andthe parallel forked members or arms 5 at the other end. 3 is a fluidholder for glue, paste, paint, ink, water, or other fluid which is to betransferred to the surface of paper, cloth, leather, or other suitablematerial. lts sides fit between the arms 5 to which its forward portionis pivotally connected by the pivot screws 8.

The forward ends of the arms 5 carry horizontal pointed pivot screws 6arranged axially in line with the axis of the roller at and formingpivots on which the reduced ends of the roller are pivoted. One of thescrews has the head 7 by which the screw may be adjusted or the screwmay be operated to release the roller from the frame for repairs orreplacement or other purpose. The axle of the roller 4 carries a knurledSpecification of Letters Patent,

Patented July 4, 1922..

1922. Serial No. 550,782.

traction collar or wheel 12, which serves to drive the roller 4; eventhough the latter is spreadlng such a slippery liquid as to deprive itof any driving adherence to the surface on which the liquid is beingspread. The front end of the liquid ho1de1- .ai is curved to lit thecurved surface of the roller 4, the forward end of the holder beinp cutaway to form the notch E) as shown in Figs. 1 and 2.

The rear end of the holder 3 has the proection 13 in which works thescrew 10 extending through the handle and having the head 11 which bearson the top face of the handle. A spring 14 surrounds the screw betweenthe handle and the project-ion 13 to hold the holder 3 at the positionto which it is adjusted by the screw 10.

()n Fig. 4, the line 15 represents a surface upon which the machine isspreading a coat 16 of liquid 18 by drawing the device to the right, theroller 4 rotating" in the direction indicated by the arrow 17. Bytilting the device as shown in Fig. 4. the liquid 18 is caused to flowagainst the roller 4; and as the device travels on the surface 15 theliquid adhering to the roller is transferred to the surface to form thecoat 16. The thiclc ness of the coat may be varied by adj ustinp thescrew 10. When the projection is adjusted toward the handle 2, thebottom of the notch 9 moves slightly away from the roller, therebyincreasing the quantity of liquid carried by the roller to the surface15. If the screw be adjusted to lower the holder 3 as shown by thedotted lines in Fig. 2, the space between the roller and the bottom ofthe notch 9 is narrowed, thereby the film of liquid carried by theroller is made thinner.

I claim- .1. In a machine for applying a liquid coat on a surface, aroller, a frame pivotally connected thereto, a liquid-containingreservoir pivotally carried by the frame and having a portion close tothe curved surface of the roller, there being an opening in the saidportion whereby the liquid in the reservoir may contact with the roller,and means for adjusting the reservoir angularly about its pivot,wherebythe relative distance between the roller and the said portion of thereservoir will vary the thickness of the coat of liquid carried byroller as it is drawn over asurface to be coated 2. In a machine forapplying a liquid coat,

on a surface, a roller, a frame connected to the ends of the roller, aliquid-holding reservolr pivoted to the frame and having an openingclose to the roller, and means for raising and lowering the rear end ofthe reservoir to adjust the distance of the opening from the roller.

3. In a machine for applying'a liquid coat on a surface, a roller, aframe pivotally' connected thereto, aliquid-containing reservoir wherebythe liquid in the reservoir may con-- tact with the roller, and a screwthreaded I connection between the frame and the reser voir to adjust thedistance of the edge of said opening away from the roller.

4. In a machine for applying a liquid coat on a surface, a roller, 8.frame plvotally connected thereto, a liquid-containing reservoirpivotally carried bythe frame and having a portion close to'the curvedsurface of the roller and below the pivot of the reservoir, there beingan openin in'the said portion. whereby the liquid in t e reservoir-maycontact With the roller, a screw threaded con-. neotion between theframe. and the reservoir to adjust the distance of the edge of saidopening away from the roller, and a spring for yieldingly holding thereservoir from movlng so as to increase the said distance. i

Signed .at Leipsig-Lindenau, Germany, this 14: day of March, 1922. a jEDUARDFELIX MULLER.

-;Witnes'ses: v E. H. LORD, WALTER E .'DUFFIE.

